Ion flotation with anionic reagents

C - Chemistry – Metallurgy – 07 – C

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C07C 335/32 (2006.01) B03D 1/01 (2006.01) B03D 1/012 (2006.01) C07C 229/24 (2006.01) C07C 335/22 (2006.01)

Patent

CA 2069304

2069304 9105760 PCTABS00005 Compounds of general formula (I), wherein Y+ is a metal cation or a hydrogen ion, and either R1 is an isothiouronium or amine group, m is 10 to 18, n is 0, and R2 is H, or R1 is H, m is 10 to 18, n is 1 to 4, and R2 is an isothiouronium or amine group. Methods for preparing the compounds of formula (I). Methods for ion flotation, especially of gold, using compounds of formula (I) as ion flotation reagents.

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